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var isArray = require('./isArray'),    isSymbol = require('./isSymbol');
/** Used to match property names within property paths. */var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,    reIsPlainProp = /^\w*$/;
/** * Checks if `value` is a property name and not a property path. * * @private * @param {*} value The value to check. * @param {Object} [object] The object to query keys on. * @returns {boolean} Returns `true` if `value` is a property name, else `false`. */function isKey(value, object) {  if (isArray(value)) {    return false;  }  var type = typeof value;  if (type == 'number' || type == 'symbol' || type == 'boolean' ||      value == null || isSymbol(value)) {    return true;  }  return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||    (object != null && value in Object(object));}
module.exports = isKey;